v3.5.1

[v3.5.1b] - 2026-09-07

Fixes for orders that spend an entire balance, and for exchanges that publish no
precision. Both were found against live Independent Reserve orders.

Fixed

• An order sized at 100% of a balance no longer fails. Exchanges charge their fee on
  top of the order, so spending the whole balance leaves nothing to pay it with and the
  request is arithmetically impossible. Independent Reserve refused it as "Available SGD
  balance is too small", which reads as though the balance were at fault when the order
  was simply 0.5% too large. The fee is now reserved out of the order using the venue's
  own published rate, and the adjustment is logged — "Reserving 0.22 SGD for the 0.5%
  taker fee". Orders that already fit are untouched. Applies to both percentage and
  cash sizing, on every crypto exchange.
• Order amounts are rounded when an exchange publishes no precision. Some venues do
  not declare one, and the previous fallback sent the raw floating-point value — 17
  decimal places, more than any exchange accepts. Amounts are now rounded down to 8
  decimals in that case, and the reason is logged rather than silently discarded.
• Each IBKR bot now gets a stable, unique client id. It was derived from a hash of
  the bot id, which Python varies per process, so a bot connected as a different client
  on every restart and two bots could collide — leaving one silently unable to connect
  and appearing to fix itself after a restart. Set client_id per bot to pin it, or
  leave it out and one is assigned. A duplicate is reassigned and reported.

Changed

• Stock bot configs accept client_id (optional). Existing configs are unaffected.